Cisco ASR 9000 Series Command Reference Guide

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If specifying a virtual interface, the number range varies, depending on interface type.
Before you can start a BERT on a T3 controller, you must configure a BERT pattern using the bert pattern
command. If desired, you can also adjust the default setting (1 minute) of the BERT interval using the
bert interval command. Both of these commands are available in T3 configuration mode.
Note
To view the BERT results, use the show controllers t3 command in EXEC mode. The BERT results include
the following information:
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Type of test pattern selected
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Status of the test
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Interval selected
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Time remaining on the BERT
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Total bit errors
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Total bits received
BERT is data intrusive. Regular data cannot flow on a line while the test is in progress. The line is put in an
alarm state when a BERT is in progress and restored to a normal state after a BERT has been terminated.
Task ID
OperationsTask ID
read, writesonet-sdh
Examples
The following example shows how to start and stop a BERT on a T3 controller:
RP/0/RSP0/CPU0:router# bert t3 0/3/0/0 start
RP/0/RSP0/CPU0:router# bert t3 0/3/0/0 stop
The following example shows how to inject errors into the BERT stream on a T3 controller:
RP/0/RSP0/CPU0:router# bert t3 0/3/0/0 error
Related Commands
DescriptionCommand
Specifies the duration of a bit error rate test (BERT) pattern on a
T3/E3 or T1/E1 line.
bert interval, on page 945
Enables a BERT pattern on a T3/E3 or T1/E1 line or an individual
channel group.
bert pattern, on page 947
Displays information about the T3 links and hardware and software
drivers for the T3 controller.
show controllers t3, on page 1054
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
954
T3, E3, T1, E1 Controller Commands on the Cisco ASR 9000 Series Router
bert t3

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model